---
enhancements:
  - |
    Change `Pipeline.connect()` to return the instance of `Pipeline`.
    This way we can chain multiple `connect()` like so:
    ```python
    pipeline.connect("fetcher", "converter") \
    .connect("converter", "splitter") \
    .connect("splitter", "ranker") \
    .connect("ranker", "prompt_builder") \
    .connect("prompt_builder", "llm")
    ```